Finding the Fourth Proportional to 2,709.57, 3,739.23 and 1,530.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,709.57 : 3,739.23 = 1,530.72 : x
2. Step 2: Convert to fraction form
   2,709.57/3,739.23 = 1,530.72/x
3. Step 3: Cross multiply
   2,709.57x = 3,739.23 × 1,530.72
4. Step 4: Simplify right side
   2,709.57x = 5,723,714.15
5. Step 5: Solve for x
   x = 5,723,714.15/2,709.57
6. Step 6: Final answer
   x = 2,112.41